Gas escape warning device



Jan. 24, 1933. B. T. MORRISON 1,895,394

GAS ESCAPE WARNING DEVICE Filed Sept. 6, 1932 my I GAS HEATER ,95 .supzr 4/45 fiqya 274010958012,

ww qw Patented Jan. 24, 1 9 33 7 UNITED STATES J x .Q ,895, 4

BOYCE TURNER monnison, on BE UMONT; 'rnxas ens ESCAPE WARnins nnvionApplieation filed fieptember 6, 19S2."S eria1 No. 631,915.

This invention relates to a gas escape warning device and has for an obect to provide adevice which may be placed in the gas line at a suitableplace and which will give a warn+ ing sound ofa piercingiwhistle if aleak or escape of gas should take place between the warning device andthe object which is consuming the gas. A further object of thisinvention is to provide a gas escape warning device which will consistof a whistle which may be placed in the gas line such as in a shut-oilvalve or in an L in the gas line. i

Yet an additional object of this invention is to provide a gasescapewarning device consisting of a whistle placed in the gas line,which whistle will be inoperative so long as there is back pressurecreated by the orderly consumption of the gas or the closing of the ivalve, but which-will give a warning sound of a piercing whistle shouldthe gas pass therethrough at excessive speed due to a leak l1avingdeveloped further on in the gas line.

With the foregoing and other objects in 2 view, as will hereinafterbecome apparent, this invention comprises the constructions,combinations and arrangements, of parts, hereinafter set forth,disclosed and shown on the accompanying drawing. In this draws, v

Figure 1 is a diagrammaticview showing this invention connected with anordinary gas heater, 1

Figure 2 is a top plan view of the gas valve showing the whistle indotted lines,

Figure 3 is a front elevation of same, Figure tis an end view of thevalve showing whistle therein, Figure 5 is a sectional view taken online 55 of Figure 2, the valve being shown in open position, 7

Figure 6 is an enlarged sectional view of the whistle,

Figure 7 is an enlarged end view of same, and

Figure 8 is a modification of this invention showing the whistle deviceembodied in an L. There is shown at 10 a stopvalve and at 11 aconnecting L to each of which this invention has been applied. The stopor shut-oil valve 10 has at one'sidethereofa flexible iose lQ leading toa gas consuming applia l ance such as a gas heater 13. Similarly, anyother type of hose. or conduit may be placed type of gas consumingapparatus.

between the stop or shut-off valve 10 and any The other side of theshut-off valve 10 connected to a gas supply line 14, the end of thesupply line 14 being threaded into an enlarged chamber 15 of theshut-off valve 10. 'ldountedwithin the chamber 15 of the shutofl valvelOis the whistle 16 by means of an internal apertured flange 17. r Awasher 180i rubber or the-like may be placed within the internal flange17 to secure the whistle I6 therein and thereby force allthe gas passingthrough thechamber 15to first pass through thewhistlelfi. L The whistle16 includes whistle chamber 19 closed at one end and having a gas entrance 2Q at the other end partly obstructed by a sloping or inclinedblock 21. Anexit 22 is provided in the whistle chamber 19 for the gaspassing therethrough, the edge of the exit 7 22 further from theentranceQO being ery sharp-as'shown at 23. i 1

l r p ra ioni t e arn ng h l 16 be placed not only'inth'e chamberlfi oftl e V shut-off or stop valve 1Q,but may. likewise be placed deepl. 11as shown in Figure 8,-

an internal, apertured flange 25 being proed in e] 1 f untingth Wh st el5 therein in the same manner that it is mounted in the fl g Win t e hamer 1 10 the Sh toiifvalve 10,.. i i

In operatiomthe warning whistle 16 permitsthe gas toflovvrfreelytherethrough without maliing a whistling sound so long asthere is no substantial difference in pressureof gasv on oppositesidesof the whistle 16. When the gas is beingcon'sumed in a gas appliance, suas he gash a 1 in an or r y menner thepressure on the hose side oft-heopen 1 v shutoff valve 10'willnot be much lower than the pressure on thegas supply line side of the, shut-ofl valve 10, and the whistle willremain silent the gas passes therethrough. h ld t se 1 eak or bec me neef om either the gas heater or the shutLofi. value then the. pressureonEide will drop as theflgas as I 7 escapes freely intothe household orsurrounding region, thus creating asubstantial difference in pressure onopposite sides of the whistle vl6. As the gas passes through the whistle16 with a substantial difference in pressure a warning sound consistingof a piercing whistle will be given ofi by the same to be remedieWhistle '16, this sound being such as'could be heard over an entirehouse and thus give warning of esc'apinc gas and allowing the I Ifthereis no needle valve present in the gas heater or gas applianceconsuming the gas, then this whistle Y V will also operate should thegas be accidentally left on without anyflame, but if a needle valve isused, the needle'valve will create sufficient back pressure to make thisjwhi'stle inoperative except in the caseof aleak' between the needlevalve and the whistle,

In the same way, as already described, the

whistle 16 is provided in each of the Us 11 1 throughout the gas supplyline and in case of a leak developing anywhere along the gas supplyline, the whistle in the adjacent L through which the gas is passingwill operate to 'give a warning sound in warning the occupants of thehouse that gas is escaping and thereby causing them to take precautionsagainst the dangers caused by escaping gas.

The novel features and theoperation of this device will be apparent fromtheforegotle when the pressure on one side thereof is substantially inexcess of the pressure on the other side thereof, said mounting,meanscomprising an internally apertured flange in 9 said gas lineconnection. V c

4. A combination gas supply line valve and gas escaping detectorcomprising a shut off valve, a chamber in said shut ofl valve, an

internally apertured flange in said chamber, and a whistle mounted insaid internally apertured flange wherebythe entire gas supply passesthrough said whistle 5. A combination gas supply line connection and gasescape detector comprising a gas supply line connection,a chamber insaid gas supply line connection, an internally apertured fiangeinsaidchz'maberiand a whistle mounted in said internally'apertured throughsaid whistle.

flan e whereby the entire gas supplypasses In testimony whereof I aflixmy signature.

BOYCE TURNER MORRISON.

ing description. -VVhile the device has been shown and thestructure'described in 'detail,

it is obvious that this is not'to be considered limited to the exactform disclosed, and that changes .may' be made therein within, the

scope of whatis claimed, without'departing from the spirit of theinvention.

' Having thus set forth and disclosedjthe nature of this invention, whatis claimed is: 1. A gas escape warning devlce comprlsing a gas supplyline, an L connection in said supply line, a whistle, and means formounting said whistleinsaid L connection whereby the entire gas supplypassesthrough said whistle and operates said whistle when the pressureon one side thereof is'substantially in'excess of the pressure on theother side supply'passes through said whistle and operates the same whenthe pressure of the gas supply on one side of said L connection issubstantially in excess of the'pressure of the r gas on the other sideof said Lv connection.

3. A gas escape detector comprising a gas line connection, awhistle,andmeans for mounting said whistle in said gas line con- 3nectionwhereby the entire gas supply passes throughsaid whistle andoperates said whis-

